<div>
do you have any errors in you event log?
</div>


<div>
Have you check the firewall, Is the port 143 is open?? Also check the below article.<br />
<br />
<a href="http://support.microsoft.com/kb/270836" rel="ugc nofollow">http://support.microsoft.com/kb/270836</a><br />
<br />
Thanks,<br />
AgentMIK
</div>


Have you check the firewall, Is the port 143 is open?? Also check the below article.

http://support.microsoft.com/kb/270836 [http://support.microsoft.com/kb/270836]

Thanks,
AgentMIK

<div>
where do i do this?..............Please add Local Ip address in the Ip allowed list in IMAP configuration.<br />

</div>


where do i do this?..............Please add Local Ip address in the Ip allowed list in IMAP configuration.


<div>
<div class="content wysiwyg-content">
My mail server is running exchange 2003 enterprise. &nbsp;several times each week (and completely randomly) IMAP just stops responding. &nbsp;So far the only thing that seems to fix the problem is a reboot. &nbsp;<br />
<br />
When I run Microsofts Port Query tool I receive the following results during an outage:<br />
<br />
<i><br />
TCP port 143 (imap service): Listening<br />
Data returned from port:<br />
BYE Connection refused<br />
</i><br />
<br />
Does anyone know how to fix this once and for all?
</div>
</div>


My mail server is running exchange 2003 enterprise.  several times each week (and completely randomly) IMAP just stops responding.  So far the only thing that seems to fix the problem is a reboot.  

When I run Microsofts Port Query tool I receive the following results during an outage:


TCP port 143 (imap service): Listening
Data returned from port:
BYE Connection refused


Does anyone know how to fix this once and for all?

Exchange 2003 IMAP Fails Intermittently

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.